Atomia DNS


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Frequently asked questions about Atomia DNS.

What hardware is required for the Atomia DNS system?

The absolute minimum requirement is one machine, but this would require the Atomia DNS Master server and Atomia DNS Bind-DLZ Nameserver to be installed on the same machine which is not recommended.

A more likely scenario would be:

  1. Server running Atomia DNS Master.
  2. Backup replica of the Atomia DNS Master database.
  3. Two or more servers running Atomia DNS Bind-DLZ Nameserver.

For larger installations it is also possible to install Atomia DNS API and Atomia DNS database on separate machines.

What software is required for the Atomia DNS system?

The software requirements for the Atomia DNS Master are listed in the Atomia DNS Master server installation instructions and the software requirements for Atomia DNS Bind-DLZ Nameserver are listed in the Atomia DNS Bind-DLZ Nameserver installation instructions.

How many queries can Atomia DNS handle?

The Atomia DNS Bind-DLZ Nameserver has been tested using dnsperf ( on a modest system to see its performance.

With dnsperf running on the same machine as the nameserver, this modest system managed to handle 8609 queries per second.

How well does Atomia DNS scale?

Atomia DNS can scale to handle large DNS infrastructures both on the back end and in terms of nameservers. To be able to scale and handle many DNS queries you only need to add more nameservers into the system. The load will then be spread across all nameservers.

The Atomia DNS Master doesn’t usually have a high load since it is only used to provision changes to the nameservers. To scale the Atomia DNS Master server, the Atomia DNS API and Atomia DNS Database can be installed on separate servers. For higher requirements it is also possible to load balance the API using several servers.

How do I administrate zones in Atomia DNS?

Atomia DNS comes with an API containing functions for administrating DNS settings.

The database on my Atomia DNS Bind-DLZ nameserver has been corrupted. How do I fix it?

The recommended way is to do a full resync using Atomia DNS Sync. More information about this can be found in the Atomia DNS Sync manual.

How do I enable ALIAS DNS records in PowerDNS?

ALIAS records are used to handle the cases when you want to set a root CNAME record. Because this kind of records are not allowed, PowerDNS offers ALIAS records. For enabling ALIAS records PowerDNS configuration has to be properly set. More information about ALIAS record type and required configuration settings can be found here. For information about how to enable ALIAS records in Atomia User Panel visit  Atomia User Panel – DNS.

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